Triplex piston pump



FIG. 1 is a perspective view taken from the top, front and _left side of a triplex piston pump showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof; and

FIG. 8 is a front elevational view of a modified form of the _triplex piston pump shown in FIG. 1. 

The ornamental design for a triplex piston pump, substantially as shown and described. 